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Egg hatching response to a range of air humidities for six species of predatory mites Inra
Ferrero, M.; Gigot, C.; Tixier, M.S.; van Houten, Y.M.; Kreiter, S..
The efficiency of biological control agents is often affected by local conditions such as low relative humidity (r.h.). This is especially true for mites of the family Phytoseiidae, and particularly for their egg stage. A key issue in biological control is thus to assess the drought tolerance of phytoseiid species that are (or that will be) commercialized. In this study, we evaluated the egg hatching response to a humidity range for six species of Phytoseiidae, by assessing the relative air humidity and vapour pressure deficit (VPD) at which 50% of the eggs hatch: r.h.50 and VPD50. Typhlodromus athiasae Porath & Swirskii and Phytoseiulus longipes Evans (Argentinean strain) were the most drought-tolerant, with a r.h.50 of 43% (VPD50 = 18.2 hPa) and 43%...
Tipo: Journal Article Palavras-chave: BIOLOGICAL CONTROL; R.H.50; VPD50; PHYTOSEIULUS LONGIPES; PHYTOSEIULUS PERSIMILIS; PHYTOSEIULUS MACROPILIS; AMBLYSEIUS SWIRSKII; NEOSEIULUS IDAEUS; TYPHLODROMUS ATHIASAE; ACARI; PHYTOSEIIDAE.
Ano: 2010 URL: http://www.prodinra.inra.fr/prodinra/pinra/doc.xsp?id=PROD201125bae2a&uri=/notices/prodinra1/2011/06/
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